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How to initialize an array's length in JavaScript?
...(function () {}) gives you an array with length 5 and undefined as values, now it can be iterated over.
Array.apply(null, Array(5)).map(function (x, i) { return i; }) gives you an array with length 5 and values 0,1,2,3,4.
Array(5).forEach(alert) does nothing, Array.apply(null, Array(5)).forEach(aler...
What does the “map” method do in Ruby?
..., convert each element by some rule
names.map! {|name| name.capitalize } # now names contains ['Danil', 'Edmund']
names.each { |name| puts name + ' is a programmer' } # here we just do something with each element
The output:
Danil is a programmer
Edmund is a programmer
...
Creating NSData from NSString in Swift
...
@macdonjo yep, that API changed over time and now it returns an Optional<NSData>, which you need to unwrap before using
– Gabriele Petronella
Sep 21 '14 at 16:57
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Including dependencies in a jar with Maven
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directory-single is now deprecated as well.
– James McMahon
May 2 '12 at 20:44
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How to change color of SVG image using CSS (jQuery SVG image replacement)?
... advantage is that it allows you to use CSS to change the color of the SVG now, like so:
svg:hover path {
fill: red;
}
The jQuery code I wrote also ports across the original images ID and classes. So this CSS works too:
#facebook-logo:hover path {
fill: red;
}
Or:
.social-link:hover p...
How do I clone a single branch in Git?
...ones support data transfer (push/pull), so that option is even more useful now.
See more at "Is git clone --depth 1 (shallow clone) more useful than it makes out?".
"Undoing" a shallow clone is detailed at "Convert shallow clone to full clone" (git 1.8.3+)
# unshallow the current branch
git fetch -...
CSS center text (horizontally and vertically) inside a div block
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There's now a display: table-cell property for that, FYI. Using it makes the element behave like a table cell and allows vertical-align: middle;
– Shauna
Apr 18 '11 at 14:38
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Intellij idea subversion checkout error: `Cannot run program “svn”`
...ke svn.exe last as per image.
Apply -> Ok
Restart your android studio now.
Happy Coding!
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Using global variables in a function
...bal variables are so dangerous, Python wants to make sure that you really know that's what you're playing with by explicitly requiring the global keyword.
See other answers if you want to share a global variable across modules.
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What is the best place for storing uploaded images, SQL database or disk file system? [closed]
... can please drop a .NET resource for that in the comment or so).
I wonder now what the best place for storing uploaded images is.
...